If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then, we are up for grabs for the next charlatan (political or religious) who comes rambling along.
The handbooks make a GREAT refresher or reference to look back on after you've taken the class. They come complete with screen shots and printouts of the source code in the lesson (for the Access and VB books).